Caddy’s reverse_proxy is capable of serving any FastCGI application, specifically for PHP apps (wordpress:php7.4-fpm-alpine). Caddy proxies requests to a PHP FastCGI server such as php-fpm.
WordPress is a content management system(CMS) based on PHP and MySQL. WordPress is used by more than 60 million websites, including 33.6% of the top 10 million websites.